Expression 8: left parenthesis, ln left parenthesis, 9 , right parenthesis , right parenthesis "x" minus 1 half left parenthesis, ln left parenthesis, 9 , right parenthesis , right parenthesis squared left brace, ln left parenthesis, 9 , right parenthesis less than or equal to "x" , right braceln9x−12ln92ln9≤x
8
Expression 9: "x" squared minus left parenthesis, ln left parenthesis, 9 , right parenthesis , right parenthesis "x" plus 1 half left parenthesis, ln left parenthesis, 9 , right parenthesis , right parenthesis squared left brace, 0 greater than "x" , right bracex2−ln9x+12ln920>x
9
Expression 10: "x" squared minus left parenthesis, ln left parenthesis, 9 , right parenthesis , right parenthesis "x" plus 1 half left parenthesis, ln left parenthesis, 9 , right parenthesis , right parenthesis squared left brace, "x" greater than ln left parenthesis, 9 , right parenthesis , right bracex2−ln9x+12ln92x>ln9